Exposure
ID
MATIS.2025-08-06T08:05:53.707_1
Header ID
MATIS.2025-08-06T08:05:53.707
Date updated
2025-08-06 08:15:50 UTC+0000
Release date
2026-08-06 08:15:50 UTC+0000
UTC Start
2025-08-06 08:05:53.707
UTC End
2025-08-06 08:06:55.717
MJD Start
60893.33742716
MJD End
60893.33814486833
Exposure time (s)
62.0
Validation level
1
Tau 0: Coherence time (s)
0.0091795
Ambient temperature (°C)
14.34
Seeing (arcsec)
0.515
Observation
ID
69279
Category
science
Program ID
115.28GN.001
Program Title
MID-INFRARED STUDY OF THE PLANETARY ATMOSPHERES OF THE HR 8799 SYSTEM
Program Type
Normal
PI / COI
HOULLÉ / MILLOUR / SCIGLIUTO / LOPEZ
Target
ID
51494
Name
HD 218396
RA
346.871635
DEC
21.13407
Instrument
Interferometer
VLTI
Instrument
MATISSE
Instrument mode
HIGH_SENS_N_LOW
Instrument sub-mode
HYBRID
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 49.2040 49.2770 38.1000 38.1000
U1-U3 92.6640 92.7890 43.3000 43.3000
U1-U4 129.7880 129.8270 63.1400 63.0540
U2-U3 43.8940 43.9440 49.2000 49.2000
U2-U4 87.7150 87.6430 76.8750 76.7700
U3-U4 52.9240 52.7860 99.5290 99.4600
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28GN.001
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT
MJD-OBS 60893.33742716
HIERARCH ESO DPR TECH INTERFEROMETRY
HIERARCH ESO OBS TARG NAME HD 218396
RA 346.871635
DEC 21.13407
HIERARCH ESO DET NAME MATISSE-N
HIERARCH ESO INS DIN NAME LOW
HIERARCH ESO INS DIN ID LOW
HIERARCH ESO INS MODE HYBRID
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 0.0200088
HIERARCH ESO DET SEQ1 PERIOD 0.026
HIERARCH ESO DET NDIT 2385
HIERARCH ESO ISS PBL12 START 49.204
HIERARCH ESO ISS PBL12 END 49.277
HIERARCH ESO ISS PBLA12 START 38.1
HIERARCH ESO ISS PBLA12 END 38.1
HIERARCH ESO ISS PBL13 START 92.664
HIERARCH ESO ISS PBL13 END 92.789
HIERARCH ESO ISS PBLA13 START 43.3
HIERARCH ESO ISS PBLA13 END 43.3
HIERARCH ESO ISS PBL14 START 129.788
HIERARCH ESO ISS PBL14 END 129.827
HIERARCH ESO ISS PBLA14 START 63.14
HIERARCH ESO ISS PBLA14 END 63.054
HIERARCH ESO ISS PBL23 START 43.894
HIERARCH ESO ISS PBL23 END 43.944
HIERARCH ESO ISS PBLA23 START 49.2
HIERARCH ESO ISS PBLA23 END 49.2
HIERARCH ESO ISS PBL24 START 87.715
HIERARCH ESO ISS PBL24 END 87.643
HIERARCH ESO ISS PBLA24 START 76.875
HIERARCH ESO ISS PBLA24 END 76.77
HIERARCH ESO ISS PBL34 START 52.924
HIERARCH ESO ISS PBL34 END 52.786
HIERARCH ESO ISS PBLA34 START 99.529
HIERARCH ESO ISS PBLA34 END 99.46
HIERARCH ESO ISS AMBI TAU0 START 0.009008
HIERARCH ESO ISS AMBI TAU0 END 0.009351
HIERARCH ESO ISS AMBI TEMP 14.34
HIERARCH ESO ISS AMBI FWHM START 0.51
HIERARCH ESO ISS AMBI FWHM END 0.52